TY  - EJOU
AU  - Li, Long 
AU  - Lu, Yanan 
AU  - Chen, Yu 
AU  - Bian, Jiayi 
AU  - Wang, Li 
AU  - Li,  

TI  - Antibacterial Chitosan-Gelatin Microcapsules Modified with Green-Synthesized Silver Nanoparticles for Food Packaging
T2  - Journal of Renewable Materials

PY  - 2023
VL  - 11
IS  - 1
SN  - 2164-6341

AB  - Silver nanoparticles (Ag NPs) are an effective antibacterial agent, but their application in food packaging is limited
due to their easy agglomeration and oxidation. In this study, antibacterial microcapsules were fabricated using
<i>Ginkgo biloba </i>essential oil (GBEO) as core material and chitosan and type B gelatin biopolymer as capsule materials. These antibacterial microcapsules were then modified with green-synthesized Ag NPs, blended into the biopolymer polylactic acid (PLA), and finally formed as films. Physicochemical properties and antibacterial activity
against <i>Escherichia coli </i>(<i>E. coli</i>) and <i>Staphylococcus aureus</i> (<i>S. aureus</i>) were evaluated. Results showed that the
prepared antibacterial PLA films exhibited excellent antibacterial activity against foodborne pathogens. Its
TVC exceeded the limit value of 7 log CFU/g at 7 days compared with the 5 days of pure PLA films. Therefore,
these films can extend the shelf life of grass carp fillets by 2–3 days under refrigeration.
KW  - Silver nanoparticles; chitosan; gelatin; microcapsules; antibacterial activity; food packaging

DO  - 10.32604/jrm.2022.021456